CVE-2026-42354
Sentry is an error tracking and performance monitoring tool. From version 21.12.0 to before version 26.4.1, a critical vulnerability was discovered in the SAML SSO implementation of Sentry. The vulnerability allows an attacker to take over any user account by using a malicious SAML Identity Provider and another organization on the same Sentry instance. The victim email address must be known in order to exploit this vulnerability. This issue has been patched in version 26.4.1.
- Affected products
- Sentry
- Sentry
- < 26.4.1
- Fix
- Available
- CVSS 3.1
- 9.8 CRITICAL
- EPSS
- 0.6% (46th percentile)
- Weakness
- CWE-290
- NVD status
- Analyzed
- Published
- 2026-05-08
CVE-2026-42354 at NVD
No indexed exploits for CVE-2026-42354 yet
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No exploit for CVE-2026-42354 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.